000116094 001__ 116094
000116094 005__ 20190117191611.0
000116094 0247_ $$2doi$$a10.1016/j.image.2008.04.005
000116094 02470 $$2ISI$$a000257519500005
000116094 037__ $$aARTICLE
000116094 245__ $$aSymmetric Distributed Coding of Stereo Omnidirectional Images
000116094 269__ $$a2008
000116094 260__ $$c2008
000116094 336__ $$aJournal Articles
000116094 520__ $$aThis paper presents a distributed coding scheme for the representation of 3D scenes captured by omnidirectional cameras. We consider a scenario with a pair of similar cameras that benefit from equivalent bandwidth and computational resources. The images are captured at different viewpoints and encoded independently, while a joint decoder exploits the correlation between images for improved decoding quality. The distributed coding is built on the multiresolution representation of spherical images, whose information is split into two partitions. The encoder then transmits one partition after entropy coding, as well as the syndrome bits resulting from the channel encoding of the other partition. The joint decoder exploits the intra-view correlation by predicting one partition from the other partition. At the same time, it exploits the inter-view correlation by using motion estimation between images from different cameras. Experiments demonstrate that the distributed coding solution performs better than a scheme where images are handled independently. Furthermore, the coding rate stays balanced between the different cameras, which interestingly permits to avoid hierarchical relations between vision sensors in camera networks.
000116094 6531_ $$aDistributed source coding
000116094 6531_ $$aOmnidirectional images
000116094 6531_ $$aLDPC codes
000116094 6531_ $$acamera networks
000116094 6531_ $$astereo imaging
000116094 6531_ $$aLTS4
000116094 700__ $$0242952$$aThirumalai, V$$g171237
000116094 700__ $$aTosic, I
000116094 700__ $$0241061$$aFrossard, P$$g101475
000116094 773__ $$j23$$k5$$q379-390$$tSignal Processing: Image Communication
000116094 8564_ $$zURL
000116094 8564_ $$s741681$$uhttps://infoscience.epfl.ch/record/116094/files/Sym_SPIC.pdf$$zn/a
000116094 909C0 $$0252393$$pLTS4$$xU10851
000116094 909C0 $$0252394$$pLTS5$$xU10954
000116094 909CO $$ooai:infoscience.tind.io:116094$$pSTI$$particle
000116094 937__ $$aEPFL-ARTICLE-116094
000116094 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000116094 980__ $$aARTICLE